The recent technology progress and existed problems for the production of feed-grade calcium hydrogen phosphate by two-stage neutralization method in China are analysed.
分析了近年来中国两段中和法生产饲料磷酸氢钙工艺路线的进展及存在的问题。
With double stage neutralization, double stage flocculation settlement, one stage vacuum filtration, and one stage cooling, the new process for treatment of waste water coming from the wate...
采用两次中和、两次絮凝沉降、一次真空过滤、一次冷却降温工艺处理水洗净化的污水，实现了封闭循环，达到了零排放。
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